1 /* 2 * PNG image format 3 * Copyright (c) 2008 Loren Merrit <lorenm@u.washington.edu> 4 * 5 * This file is part of FFmpeg. 6 * 7 * FFmpeg is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * FFmpeg is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with FFmpeg; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22 #ifndef AVCODEC_PNGDSP_H 23 #define AVCODEC_PNGDSP_H 24 25 #include <stdint.h> 26 27 typedef struct PNGDSPContext { 28 void (*add_bytes_l2)(uint8_t *dst, 29 uint8_t *src1 /* align 16 */, 30 uint8_t *src2, int w); 31 32 /* this might write to dst[w] */ 33 void (*add_paeth_prediction)(uint8_t *dst, uint8_t *src, 34 uint8_t *top, int w, int bpp); 35 } PNGDSPContext; 36 37 void ff_pngdsp_init(PNGDSPContext *dsp); 38 void ff_pngdsp_init_x86(PNGDSPContext *dsp); 39 40 #endif /* AVCODEC_PNGDSP_H */ 41